i was upgrading from 12.04 to 16.04 and zimbra 8.0 to 8.8.5 in many steps.i have a nginx proxy config on my dmz mailserver ( exim4 ) that worked.it points to the internal mailserver: https://xx.xx.xx.xx:7072/service/extension/nginx-lookupthe internal mailserver has a /opt/zimbra/conf/nginx/includes/nginx.conf.zmlookup with the same valuethe port 7072 answers if i telnet from the external mailserver.but it seems it does not work. i cannot connect from external anymore. the proxy service from zimbra appears to be off? also the /opt/zimbra/nginx hard link goes nowhere. i am lost now. why does it answer then?everything else works from internal, the zimbra server can also fetch the mails from the external mailserver and send.

proxy on zimbra server is off. checked, ports set to 0

Last edited by goorooj on Tue Feb 13, 2018 11:11 am, edited 2 times in total.

Ok, that answers one question that I didn't actually ask - you're running the embedded IMAP, not the remote one, which is fine.That does mean that any useful logging will be in mailbox.log rather than imapd.log - anything there?

hmmm the direct connects to imap from internal clients are ok. everythings works as expected there. no sign from connects from the mailext, whatsoever.where would i have to look for 7072 auth fails?

oh, found something in a trace_log.2018_02_14, ip is mailext14:44:45.232:qtp510113906-1401 OPENED HttpConnection@10d9377c[DecryptedEndPoint@62fc06bc{/192.168.xx.xx:41953<->7072,Open,in,out,-,-,1/60000,HttpConnection}->SelectChannelEndPoint@4fd499bd{/192.168.xx.xx:41953<->7072,Open,in,out,-,-,1/60000,SslConnection}{io=0/0,kio=0,kro=0}][p=HttpParser{s=START,0 of 0},g=HttpGenerator@98e622f{s=START},c=HttpChannelOverHttp@4ffdf85f{r=0,c=false,a=IDLE,uri=null}][b=null]14:44:45.233:qtp510113906-1446 CLOSED HttpConnection@10d9377c[DecryptedEndPoint@62fc06bc{/192.168.xx.xx:41953<->7072,CLOSED,ISHUT,OSHUT,-,-,1/60000,HttpConnection}->SelectChannelEndPoint@4fd499bd{/192.168.xx.xx:41953<->7072,CLOSED,ISHUT,OSHUT,-,-,1/60000,SslConnection}{io=0/0,kio=-1,kro=-1}][p=HttpParser{s=START,0 of 0},g=HttpGenerator@98e622f{s=START},c=HttpChannelOverHttp@4ffdf85f{r=0,c=false,a=IDLE,uri=null}][b=null]